PS1="\[\e[1;35m\][\t]\[\e[0m\]\u: \[\e[1;32m\]\w \[\e[0m\]$ "
alias gp='grep --color=auto '
alias ll='ls -lt --time-style "+%Y-%m-%d %H:%M:%S" '
function usr_cal(){
    python3 -c "print($@)"
}
alias calculate="usr_cal "